simulated wind driven debris impact test€¦ · nata accredited laboratory no: 15147 simulated...

$: SIMULATED WIND DRIVEN DEBRIS IMPACT TEST€¦ · NATA Accredited Laboratory No: 15147 SIMULATED WIND DRIVEN DEBRIS IMPACT TEST NO. AZTP0108.13 Debris Test Report\ Issued on 07/09/11\$
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Head Office: 52 Justin Street, Smithfield NSW 2164 Perth Office:Unit 1/2 Meares Way, CanningVale WA 6155

PH: 61(02)9604 0255 FAX: 61(02)9604 0466www.azumadesign.com.au

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REPORT NO:

CLIENT:

SIMULATED WIND DRIVEN DEBRIS IMPACT TEST

DATE:

CLEARSHIELDAZTP0108.1313th August 2013

NATA Accredited Laboratory No: 15147 SIMULATED WIND DRIVEN DEBRIS IMPACT TEST NO. AZTP0108.13

Debris Test Report\ Issued on 07/09/11\ Revised on 20/5/13 (rev-5) Page 1 of 8

Accredited for compliance with ISO/IEC 17025. This document shall not be reproduced, except in full.

Address: Head Office: 52 Justin Street, Smithfield NSW 2164 Australia PH: 61 (02)9604 0255 Perth Office: Unit1/2 Meares Way, Canning Vale WA 6155 PH: 61 (08)9455

Azuma Design Pty Ltd

CLIENT: CLEARSHIELD ADDRESS: 23 VALE St MALAGA WA 6090 DATE: 13th August 2013 1 The Test This test is a simulation of wind driven debris impact loading on an external building sample supplied by the client to the Azuma Design Pty Ltd laboratory. The sample supplied shall be capable of resisting a wind load as stated in both AS/NZ 1170-2011 Part 2, Section 2.5.7 and Section 5.3.2, as well as the Queensland Government Department of Public Works Design Guidelines for Australian Public Cyclone Shelters Section 3.2(b). 2 Debris Load Design Guidelines The structural design guidelines for debris loads state that the external fabric of a building is to be at least capable of resisting wind debris defined as: * One 100 mm x 50 mm piece of timber with a mass of 4 kg, impacting

end–on at 0.4 x V10,000 for horizontal trajectories and 0.1 x V10,000 for vertical trajectories.

* One spherical steel ball of 2 grams mass and 8 mm diameter impacting at

0.4 x V10,000 for horizontal trajectories and 0.3 x V10,000 for vertical trajectories.






3 Test Criteria and Procedure

For Cyclonic Regions C or D debris test loads for the external fabric of the

building are as follows:

Test Load A: One end-on impact of a 4 kg mass of timber with cross section dimensions of 100 mm x 50 mm, impacting at the speed specified for the trajectory. Test Load B: Five spherical steel balls of 2 grams mass and 8mm diameter impacting at the speed specified for the trajectory.

Test Sequence

A test sample shall be subjected to successive test loads applied in the following order: 1. Debris Test Load A 2. Debris Test Load B

Acceptance Criteria

A test sample shall:

1. Prevent a debris projectile from penetrating.

2. If penetrated, have a maximum perforation width of less than 8 mm.






4 Test Apparatus and Procedure. The test sample is tested in the Azuma Design’s air cannon testing facility. The air cannon consists of two air cylinders connected to a barrel in which the projectile is loaded. The air cannon is mounted on a platform which allows for varying height adjustments. The test sample is mounted on a support frame 2 meters from the exit opening of the barrel. A digital chronograph is installed at the exit of the barrel to record the velocity of the projectile prior to the impact on the test sample. To achieve the required velocity both air cylinders are charged to a predetermined level. On reaching this level both cylinders are discharged via a solenoid valve creating an instantaneous release of air to accelerate the projectile towards the sample at the required velocity. 5 Description of the Sample/Product Tested. Model Name: Clearshield Roof Screen

Model Number: 750mm x 300mm ENHANCED

Frame Dimensions: 750mm H x 300mm W

Infill Material: 304 perforated Stainless steel

Infill Material Thickness: 0.8mm

Aperture: 2.0 mm

Retaining System: Clearshield Security retaining system enhanced with 3 stainless steel rivets on each stile evenly spaced and 1 stainless steel rivet on each rail centre location.






6 Results

Projectile Description Load A A timber of 4 kg mass with cross section dimensions of 100mm x

50mm Load B A spherical steel ball 2 grams mass x 8 mm diameter

A summary of the test results Impact No.

Date Tested

Impact Location Impact Velocity (m/s)

Results and Observations

1. Load A 13/8 Intersection 150 mm from LH stile and 375 mm below the top rail

9 m/s Pass

2. Load B 13/8 5 Random impacts 36 m/s Pass






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simulated wind driven debris impact test€¦ · nata accredited laboratory no: 15147 simulated...

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