Sonelastic SA-BC Manual de usuario

Installation and Operation Manual

SA-BC

Adjustable support for bars and cylinders

ATCP Physical Engineering, SonelasticDivision

Lêda Vassimon, 735-A - Ribeirão Preto - Brazil - 14026-567

Telephone: +55 (16) 3289-9481

www.sonelastic.com

Sonelastic®Systems

SA-BC Adjustable support for bars and cylinders

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Installation and Operation Manual

SA-BC

Adjustable support for bars and cylinders

Manufactured by:

ATCP do Brasil –Alves Teodoro Cerâmicas Piezoelétricas do Brasil Ltda.

ATCP Physical Engineering, SonelasticDivision

Rua Lêda Vassimon, 735-A

Ribeirão Preto –SP, Brazil

CEP 14026-567

CNPJ: 03.970.289/0001-60

Inscrição estadual: 797.013.492.110

Brazilian Industry

www.sonelastic.com

ATCP reserves the right to change the product or this manual without notice.

Version 5.0

January/2022

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SA-BC Adjustable support for bars and cylinders

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TABLE OF CONTENTS

1. Introduction ................................................................................................. 05

2. Definitions .................................................................................................... 05

3. Features and applications ............................................................................. 05

4. Configurations, parts, accessories and optional items .................................. 06

5. Parts identification ....................................................................................... 08

6. Specifications ............................................................................................... 09

7. Specimens .................................................................................................... 10

7.1 Recommended aspect ratios and typical dimensions .................................... 10

7.2 Placing the specimen ............................................................................... 11

8. Support installation ....................................................................................... 12

8.1 Requirements ........................................................................................ 12

8.2 Typical arrangements .............................................................................. 12

8.3 Mounting the acoustic sensor in the vertical base and Sturdy Tripod ............. 15

8.4 Replacing the support-cables .................................................................... 16

8.5 Installing the IED Automatic Impulse Device............................................... 17

9. Support operation.......................................................................................... 18

9.1 Positioning the specimen.......................................................................... 18

9.2 Positioning the acoustic sensor ................................................................. 19

9.3 Positioning the IED Automatic Impulse Device ............................................ 20

10. Acquisition and excitation modes ................................................................ 21

11. Warnings and support transportation.......................................................... 23

12. Maintenance and troubleshooting................................................................ 23

13. Symbology................................................................................................... 24

14. Technical support and warranty ................................................................. 24

15. Statement of responsibility.......................................................................... 24

Notes................................................................................................................. 25

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SA-BC Adjustable support for bars and cylinders

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1. Introduction

ATCP Physical Engineering equipment and products were projected and manufactured to

provide a long-lasting and top-rated performance. This Installation and Operation Manual

contains all necessary information regarding the use and maintenance of SA-BC Support.

Carefully read this manual before using the support. Improper use may

damage the product and affect its performance.

2. Definitions

Impulse Excitation Technique: The Impulse Excitation Technique is a non-destructive

technique to determine the elastic moduli and damping of materials by the resonance

frequencies of test specimens. ASTM E1876 is the main standard related to the Impulse

Excitation Technique.

Resonance frequencies: Specimen natural frequencies of vibration.

Elastic modulus: Elastic modulus or Young’s modulus is defined as the slope of the stress-

strain curve at the elastic region, as described by Hooke’s Law. The elastic modulus

determined by Impulse Excitation Technique is also termed as dynamic elastic modulus.

Damping: Damping is the phenomenon by which mechanical energy is dissipated in dynamic

systems. It is directly linked to the presence of defects and to the material microstructure.

3. Features and applications

SA-BC Support is an apparatus to support specimens for non-destructive characterization of

Young’s modulus and damping of materials by Impulse Excitation Technique, in agreement

with ASTM E1876 and correlated standards. SA-BC Support was developed to be used

alongside Sonelastic®Systems.

SA-BC Support allows rectangular and cylindrical specimens to rest on the nodal lines of the

fundamental flexural vibration mode (for a specimen of length L, these nodal lines are 0.224L

distant from the ends). Based on the size and weight of the specimen to be tested, this

support offers a practical system to adjust the distance between the support-cables, as well

as the traction on them. SA-BC Support also allows tests based on torsional and longitudinal

vibration modes for bars and cylinders.

For greater convenience, SA-BC Support may be combined with IED Automatic Impulse

Device and Sturdy Tripod.

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SA-BC Adjustable support for bars and cylinders

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4. Configurations, parts, accessories and optional items

SA-BC Support is available in both manual and automatic configurations. Optional items are

offered to customize the Sonelastic®Systems.

Manual configuration

Parts:

[01] –SA-BC Support;

[02] –CA-PD Acoustic Sensor with vertical mounting base.

Accessories:

[03] –Spare support-cable set;

[04] –Height-adjusting disc;

[06] –Medium Manual Impulse Device;

[07] –Light Manual Impulse Device.

Optional Items:

[05] –Sturdy Tripod.

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SA-BC Adjustable support for bars and cylinders

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Automatic configuration

Parts:

[01] –SA-BC Support;

[02] –CA-PD Acoustic Sensor.

Accessories:

[03] - Sturdy Tripod;

[04] - Spare Support-cable set;

[05] - Height-adjusting disc;

[06] - IED Automatic Impulse Device / Control unit;

[07] - IED Automatic Impulse Device / Medium RT Impulse Device;

[08] - Medium Manual Impulse Device;

[09] - Light Manual Impulse Device.

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SA-BC Adjustable support for bars and cylinders

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5. Parts identification

SA-BC Support

01- Support base;

02- Support-cable tightener;

03- Spare Support-cable set*;

04- Leveling feet;

05- Mobile support base;

06- Anchoring terminal;

07- Supporting sleeve;

08- Fixed posterior support-tube;

09- Sliding support-tube;

10- Support-cable;

11- Safety cables;

12- Fixed anterior support-tube.

* Two sets of cables are provided: a Ø1.2 mm cable, for heavier specimens, and a Ø0.7mm cable,

for lighter specimens.

CA-PD Acoustic Sensor

01-CA-DP Acoustic Sensor;

02- P2 plug (3.5 mm);

03- Flexible cable;

04- Cable gland;

05- Acoustic sensor frame;

06- Vertical mounting base*;

07- Height-adjusting disc**.

* The Vertical mounting base allows positioning the acoustic sensor on the vertical, directly below

the specimen, for measurements under the manual configuration.

** The height-adjusting disc should be used to balance CA-DP Acoustic Sensor and or IED Impulse

device heights, when testing lightweight specimens.

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SA-BC Adjustable support for bars and cylinders

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Sturdy Tripod

01- Frame;

02- Articulated tripod;

03- Handle for securing the tube;

04- Pillar;

05- Handle for the tube articulation;

06- Acoustic sensor clip;

07- Inner tube;

08- Handle for the inner tube articulation;

09- Outer tube;

10- Handle for the outer tube articulation;

11- Cable’s organizer.

The Sturdy Tripod is supplied in the support automatic configuration and it is optional for the in

manual configuration to measure the longitudinal vibration mode.

6. Specifications

Maximum dimensions for cylindrical specimens (L x D) .............. 450 x 200 mm

Minimum dimensions for cylindrical specimens (L x D) ............... 100 x 5 mm

Maximum dimensions for rectangular specimens (L x W x T) ....... 450 x 170 x 170 mm

Minimum dimensions for rectangular specimens (L x W x T) ....... 100 x 5 x 5 mm

Maximum weight when using Ø 0,7mm support-cable ................. 10 kg

Maximum weight when using Ø 1,2mm support-cable ................. 30 kg

Aperture between the support rods (minimum - maximum) ........ 62 - 200 mm

Aperture between the support-cables (minimum - maximum) ..... 15 - 275 mm

Support dimensions (L x W x T) .............................................. 360 x 522 x 270 mm

Support weight without a specimen ......................................... 4.6 kg

Working temperature range ..................................................... 10 - 40°C (50 - 104 °F)

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SA-BC Adjustable support for bars and cylinders

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7. Specimens

7.1 Recommended aspect ratios and typical dimensions

Minimum aspect ratios must be observed to avoid coupling between specimen’s vibration

modes. In addition, aspect ratio determines the pattern of frequency spectrum of the acoustic

response. We advise users to standardize the aspect ratio in order to facilitate the frequencies

identification. The table below presents the recommended aspect ratio and typical dimensions

for bars and cylinders.

Geometry

Recommended aspect ratio

Typical dimensions

Cylinder

𝐿

𝐷≥ 2

The ratio between length (L) and

diameter (D) must be greater than or

equal to 2.

(L x D)

- 100 x 50

- 150 x 75

- 200 x 100 mm

- 300 x 150 mm

- 500 x 50 mm

Square Section Bar

𝐿

𝐴≥ 3

The ratio between length (L) and edge

(A) must be greater than or equal to 3.

(L x A x A)

- 150 x 25 x 25 mm

- 150 x 35 x 35 mm

- 250 x 60 x 60 mm

- 450 x 50 x 50 mm

Rectangular Section Bar

𝐿

𝑊 4

The ratio between length (L) and width

(W) must be greater than or equal to 4.

𝑊

𝑇≤ 8

The ratio between width (W) and

thickness (T) must be less than or equal

to 8.

(L x W x T)

- 150 x 30 x 10 mm

- 150 x 37,5 x 5 mm

- 300 x 60 x 20 mm

- 450 x 100 x 35 mm

Important observations for preparing and finishing the specimens:

- The recommended dimension tolerance is 2%;

- Faces should be flat and parallel;

- Corners should not be rounded.

Note: Minimum dimensions may vary as a function of aspect ratio and material Young’s

modulus; the frequency should be lower than CA-DP Acoustic Sensor maximum frequency

(96 kHz). It is possible to estimate the frequency using SonelasticSoftware simulation tool.

The higher the Youngs’ modulus, the higher the frequency.

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