ASTMD7264

The ASTM D7264 Three- and Four-Point Flexure Test Fixture is engineered to evaluate the flexural properties of polymer matrix composites. Supporting both three-point and four-point bending tests, it is built with high-temperature steel and features high-hardness stainless steel anvils (HRC 60-62), ensuring exceptional durability and precise measurement of flexural strength and modulus. Equipped with adjustable span and width positioning blocks for quick specimen centering, it is the ideal solution for material design, quality control, and advanced composite testing.

Overview

The Three- and Four-Point Flexure Test Fixture is designed to meet the requirements of ASTM D7264 for evaluating the flexural properties of polymer matrix composite materials. This versatile fixture accommodates both three-point and four-point bending tests, providing precise measurement of flexural strength, stiffness, and modulus.

Design Features and Benefits

High-Hardness Anvils:
The straight cylindrical loading anvils are constructed from high-hardness stainless steel (HRC 60-62), ensuring durability and minimal deformation during testing.
Specimen Centering:
The lower support anvils are equipped with width positioning blocks to facilitate quick and accurate specimen centering.
Precise Span Adjustment:
The fixture features span positioning blocks, allowing the standard specimen to be precisely adjusted to the required span length in a single setup.

Applications

Primary Purpose:
Following the ASTM D7264 standard test method, this fixture is primarily used to evaluate the flexural properties of polymer matrix composites, including flexural strength, stiffness, and modulus. The standard outlines two test procedures: three-point loading and four-point loading. Through these tests, the mechanical behavior of materials under flexural loading can be understood, providing critical data for structural design, quality control, specification development, and practical applications.
Applicable Standards:
ASTM D7264
Specimen Materials:
Polymer matrix composites.

Technical Specifications:

Parameter ACAD7264G0
(Three- & Four-Point Flexure Fixture)
1 Part No. 1JAASD726408
2 Max Load Capacity 20 kN
3 Upper Anvil Radius R5 mm
4 Lower Anvil Radius R5 mm
5 Upper Span 10 – 96 mm
6 Lower Span 10 – 146 mm
7 Anvil Hardness 60 – 62 HRC
8 Fixture Dimensions (H×W×T) 284 × 200 × 30 mm
9 Weight 4 kg
10 Operating Temperature -70 to 500 °C
11 Built Material High-temperature Steel
12 Upper Interface 20 mm, 31.75 mm, 40 mm, Hydraulic Clamping

Related Products:

Part No. Model Code Description
1FFJNDCWFC02 ACAD7264C1 Deflectometer Bracket (Universal Type)
1PZLCG000158 LCER115/10 Deflectometer
Note: The deflectometer and bracket are available as optional accessories and must be ordered separately. Refer to the Related Products section for compatible accessories.

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