A Pilot Program to Teach Variability of Material Properties in the Freshman Material Laboratory

概率方法正在得到广泛的接受， 结构和岩土工程领域，并导致 全面修订业务守则。 虽然这些方法 在一些大学的研究生阶段引入， 它们很少被纳入本科课程。 作为 因此，绝大多数土木工程师仍然 毕业时没有接触到任何随机性的概念， 材料性能和载荷。 该项目的最终目标是提高 土木工程材料特性变异性 本科生 一、土木工程本科 材料实验室课程将进行修改。 接下来， 将被传播。 在传统的土木工程材料实验课程中， 测试通常在单个样品上进行。 示出 材料特性的随机性需要大量的 试验. 为了提供这种能力，现有的400基普鲍德温 测试系统将升级。 升级将提供 试验架自动闭环控制，数据完整 采集

Probabilistic methods are gaining wide acceptance in the structural and geotechnical engineering fields and are causing comprehensive revisions in codes of practice. While these methods are being introduced in some universities at the graduate level, they are rarely integrated into the undergraduate curriculum. As a result, the overwhelming majority of civil engineers still graduate without any exposure to the concepts of randomness of material properties and loads. The ultimate goal of this project is to improve the teaching of variability of material properties to civil engineering undergraduates. First, the undergraduate civil engineering materials laboratory course will be modified. Next, the results will be disseminated. In a conventional civil engineering material laboratory course, testing is typically done on a single specimen. Illustrating the random nature of material properties requires a large number of tests. To provide this capability, the existing 400-kip Baldwin testing system will be upgraded. The upgrade will provide automatic closed-loop control of the test frame and complete data acquisition.