GB/T 30967-2014 English PDF

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GB/T 30967-2014: Practice for fiber reinforcement orientation codes for composite materials
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 30967-2014	169	Add to Cart	3 days	Practice for fiber reinforcement orientation codes for composite materials	Valid

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Basic data

Standard ID: GB/T 30967-2014 (GB/T30967-2014)
Description (Translated English): Practice for fiber reinforcement orientation codes for composite materials
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Q23
Classification of International Standard: 83.120
Word Count Estimation: 7,713
Date of Issue: 7/24/2014
Date of Implementation: 1/1/2015
Regulation (derived from): National Standards Bulletin No. 19, 2014
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This Standard specifies the fiber-reinforced composite body orientation coding method reference coordinate system, laminates reinforcement orientation coding, coding orientation braid reinforcement and simplify orientation coding method for a computer sys

GB/T 30967-2014: Practice for fiber reinforcement orientation codes for composite materials

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Practice for fiber reinforcement orientation codes for composite materials ICS 83.120 Q23 National Standards of People's Republic of China Body oriented coding method fiber-reinforced composite materials Issued on. 2014-07-24 2015-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard by the China Building Materials Federation, China Aviation Industry Corporation made. The standard fiber-reinforced plastic by the National Standardization Technical Committee, the National Standardization Technical Committee on Aircraft (SAC/TC435) Centralized. This standard was drafted. China Aviation Industry Corporation Beijing Institute of Aeronautical Materials, China Aircraft Strength Research Institute. The main drafters of this standard. ZHANG Zi, Peng Bo, Li Xueqin, true Shen, Yang Shengchun. Body oriented coding method fiber-reinforced composite materials

1 Scope

This standard specifies the reference coordinate system is a fiber-reinforced composite body oriented coding method, laminate reinforcements oriented coding, knitted by Strong body alignment and simplify coding orientation coding method for a computer system. This standard applies to two-dimensional laminates and braid reinforced body oriented coding, coding orientation also applies to continuous filament wound material.

2 reference coordinate system

2.1 laminate reinforcements oriented coding should first select the reference plane. For laminate reinforcements oriented coding, reference plane generally choose Laminates Bottom or top. It was in the face of said laminated board using the bottom or top as a reference plane orientation encode the same. Reference surface layer of decision Plywood reference Z-axis coordinate system or third axis. 2.2 reference plane coordinate axis direction (0 ° direction) may be needed to determine the general direction of the main fiber axis as the reference coordinate system direction.

3 laminate reinforcement fibers oriented coding

3.1 fiber reinforced laminate orientation encoded form of directions and the number of layers is. [θ1m1b1/θ2m2b2] nsb. θ1, θ2 were laminated board Angle of each single fiber laying direction (°); m1, m2 respectively θ1, single layers (not applicable to a monolayer) on the θ2 direction; b1, b2 Respectively θ1, θ2 material types and forms of co-direction of laying the upper plate; n is the number of repetitions in parentheses fiber ply group; s represents the geometry of the Symmetry; b represents the type of material and form. 3.2 All layers are sequentially arranged from the reference surface of the laminate, the square brackets indicate the start and end orientation coding. 3.3 each direction relative to the reference axis alignment layer with the main fiber direction and the direction of the reference coordinate axis represents the angle of the woven fabric The warp direction of the angle between the reference direction. It is on the shop level, in the counterclockwise direction with reference to the angle of a positive angle (right-hand rule). Angle Interval value (-90,90], the orientation of adjacent layers have different values \u200b\u200bseparated by the slash (/). Angle equal and opposite in sign adjacent Two available "±" or "∓" representation. 3.4 If two or more adjacent layers having the same orientation and material systems, with the orientation angle and the subscripts denote the number of repetitions to form Shown, if necessary indicated Material form. 3.5 laminate contains duplicate fiber ply group oriented coding layer group by parentheses and enclosed in parentheses external standard n, s, b subscript To simplify. You can put all formations in square brackets need to describe the outer layer of plywood, square brackets under the internal standard brackets denote fiber ply Repeat mode group. 3.6 with the subscript b indicates that the material system, the unidirectional tape layers can be omitted under the standard, the fabric layer represented by the subscript f. If the single laminates contained The same layer type, you can label the appropriate subscript (eg f) outside the square brackets; hybrid layer layers composed of different materials plywood code should be different On a separate label single subscript. Correspondence between the index and the material should comment after the laminate code. 3.7 When the layers of symmetrical relationship, laminates available orientation encoding lay half way and subscript s represents. Odd symmetric layer laminates, which Oriented coding spend streaked on the surface to indicate the orientation angle. If using the subscript s, you can use the subscript T (represents the total number) to represent the There are layers. Except that 3.8 T means all, all the index are small letters. Plywood layers oriented coding layer 3.9 computer representation following modifications. ......

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