CAREER: Innovative Materials for Civil Systems Research and Education

该职业奖侧重于研究和教育，将材料特性和系统分析集成到土木系统设计中。一种创新的聚合物纤维水泥基材料，在拉伸中表现出伪应变硬化，研究用于抗震结构。这种工程材料的能量耗散是在其与传统材料的混凝土和后张钢筋相结合的情况下进行研究的。这种材料组合应用于创新的桥梁基础结构系统，提供能量耗散并减少地震荷载的残余挠度。材料表征采用先进的实验技术和非线性有限元模拟。进行了系统分析，以研究在新的抗震结构中使用这种先进材料的潜力。课程的开发是为了提高材料表征和系统分析的知识和技能。本课程促进并激发了学生在民用基础设施需求创新材料的发明和实施方面的创造力。学生将接触到先进的实验和计算机模拟工具。土木系统课程中的实际项目提供了接触复杂决策过程的机会，并提供了使用创新材料实施创造性解决方案的机会。为了促进创造力和激发想象力，土木工程界必须是一个多元化的群体。吸引多样性的一种方法是通过大学预科学生的活动来提高对工程的认识。土木系统设计的动手实验工作坊将被开发出来，向大学预科学生展示现代土木系统的兴奋和社会相关性。

This CAREER award focuses on research and education integrating material characterization and systems analyses for Civil Systems Design. An innovative, polymeric fiber cement-based material, which exhibits pseudo strain hardening in tension, is studied for use in seismic-resistant structures. Energy dissipation in this engineered material is examined in its combination with traditional materials of concrete and post-tensioned steel. This combination of materials is applied to an innovative bridge substructure system, providing energy dissipation and reduced residual deflections for seismic loading. Material characterization is conducted using advanced experimental techniques and nonlinear finite element simulation. Systems analyses are performed to study the potential of using this advanced material in new seismic-resistant structures. Courses are developed to enhance knowledge and skills for material characterization and systems analysis. This coursework facilitates and motivates creativity in the invention and implementation of innovative materials for civil infrastructure needs. Students are exposed to advanced experimental and computer simulation tools. Real-world projects in civil systems courses give exposure to complex decision processes and offer opportunities to implement creative solutions using innovative materials. To promote creativity and inspire imagination, the civil engineering community must be a diverse population. One approach to attract diversity is to promote awareness of engineering through activities for pre-college students. Hands-on laboratory workshops on Civil Systems Design will be developed to demonstrate the excitement and social relevance of modern civil systems to pre-college students.