The product responsibility lawsuit forces designs the personnel and the company when the choice material, uses the best procedure. In the material process, five most common questions are: (a) did not understand or cannot use about the material application aspect most newly the best information paper; (b) has not been able to foresee and to consider the dusk year possible reasonable use (for example to have the possibility, designs the personnel also to be supposed further to forecast and the consideration because product application method not when creates consequence. ecent years many products responsibilities lawsuit case, because wrongly uses the plaintiff which the product receives the injury to accuse produces the factory, and wins the decision); (c) uses the material data not entire perhaps some data are indefinite, works as its long-term performance data is the like this time in particular; (d) the quality control method is not suitable and not after the confirmation; (e) the personnel which completely is not competent for the post by some chooses the material. 

Through to the above five questions analysis, may obtain these questions is does not have the sufficient reason existence the conclusion. May for avoid these questions to these questions research analyses the appearance indicating the direction. Although uses the best choice of material method not to be able to avoid having the product responsibility lawsuit, designs the personnel and the industry carries on the choice of material according to the suitable procedure, may greatly reduce the lawsuit the quantity. 

May see from the above discussion, the choice material people should to the material nature, the characteristic and the processing method have comprehensive and the basic understanding.

机械工程设计选材基础知识

摘要：本文致力于研究对各种材料选择的电脑化系统发展。并对以基础知识的系统在并行工程环境（KBS）的重要性进行了解释。KBS的研究在材料选择方面由一个工程设计过程来描述。材料数据库的发展，和选材服务，也被讨论到了。在材料选择KBS和使用中的聚合物基复合材料领域的应用是选材典型的例子。      

2001年由Elsevier科学有限公司出版。

1.0 简介

材料选择通常是设计和材料工程师一项任务。加特里奇和水人[1]中是这样描述选择材料的:经过适当的制造业务，将有尺寸，形状和性能的产品或组件要以最低的成本展示其规定功能的材料选择的目标。对于选材的目的，成千上万的数据将需要所有的材料的特性。许多选择系统可以帮助设计工程师选择最合适的材料。在最基本的层面上，设计工程师可利用材料性能数据手册表。但是，数据表是不完整的，一旦公布，他们是难以更新。多德和范福 [2]描述了有关工程材料的资料，可分为两大类，即数据和知识的分歧。数据被定义为测量的结果，而信息代表之间的数据源Z自)751/文\论,文]网[www.751com.cn，在这方面的知识，这有助于对结果的认识源项目的连接。无论是计算机化的数据库和材料选择的KBS将在以下各节描述。