GB/T 1450.2-2005 in English

《GB/T 1450.2-2005纤维增强塑料冲压式剪切强度试验方法》由TC39（全国纤维增强塑料标准化技术委员会）归口，主管部门为中国建筑材料联合会
本标准规定了冲压式剪切强度试验的试样、试验设备、试验条件、试验步骤及结果计算等。本标准适用于测定纤维增强塑料板材的断纹剪切强度及短纤维增强塑料的剪切强度。

Fibre-reinforced plastic composites — Determination of the punch-type shear strength

1 Scope

This standard specifies the specimen, test equipment, test conditions, test procedures and result calculation for determination of punch-type shear strength.

This standard applies to the determination of the shear strength of broken lines of fibre-reinforced plastic plates and the shear strength of chopped fibre-reinforced plastics.

Note: The shear strength of broken lines refers to the shear strength perpendicular to the ply direction.

2 Normative references

The following standards contain provisions which, through reference in this text, constitute provisions of this national standard. For dated reference, subsequent amendments to (excluding any corrigendum), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the latest editions of the standards indicated below. For undated references, the latest edition of the normative document referred to applies.

GB 1446-2005 Fiber-reinforced plastics composites — The generals for determination of properties

3 Principle

The specimen is placed in a special fixture and loaded at a constant speed to make it shear along the thickness direction, and the shear strength is measured.

4 Test specimens

4.1 The shape and dimensions of the fibre-reinforced plastic plate specimen are shown in Figure 1. The specimens were prepared by mechanical processing. In case of the thickness of the sheet is more than 6 mm, one side is machined to (6 ± 0.1) mm.

Foreword i
1 Scope
2 Normative references
3 Principle
4 Test specimens
5 Test equipment
6 Test conditions
7 Test procedure
8 Calculation
9 Test result
10 Test report