On the high rate compressive failure of naval steels

Martec Limited是一家总部位于哈利法克斯的工程咨询公司。Martec的计算系统三叉戟被用来分析海军舰艇的部件以及这些系统对爆炸、水下冲击和撞击事件的反应。拟议的NSERC Engage拨款侧重于海军舰艇上广泛使用的材料的数字模型。用来描述材料行为的计算模型需要通过基本实验确定的力学性能。除了这些材料参数，这些实验还提供了对材料破坏的洞察，这对数值模型的发展至关重要。在这份提案中，我们请求资金支持一项关于海军钢动态压缩的研究(HY80)，该研究将产生机械性能和失效信息，这些信息将用于开发和验证Martec在其分析中使用的计算模型。我们将通过一系列的测试和表征以及结果的应用来实现这一目标。这些任务主要是由Byan硕士学生完成的，为此他的工资和实验活动正在申请资金。通过这项研究，我们将开发一个强大的框架，以了解和评估海军结构中使用的材料的失效。我们通过使用数值模拟了解和预测故障的能力最终将导致Martec和加拿大合作伙伴开发改进的材料和保护产品。这份意见书是在2017年2月访问马尔泰克期间建立的关系基础上发展起来的，这一关系得到了连接赠款的支持。

Martec Limited is a Halifax-based engineering consulting company. Martec's computational system, Trident, isused to analyse components for naval ships and the response of these systems to blast, underwater shock andimpact events. The proposed NSERC Engage grant focuses on the numerical model for materials widely usedin naval vessels. The computational models used to describe the behaviour of the materials require mechanicalproperties determined through fundamental experiments. In addition to these material parameters, theseexperiments also provide insights into material failure, which are crucial to the development of the numericalmodels. In this proposal, we are requesting funds to support a study of the dynamic compression of naval steel(HY80) that will yield both mechanical property and failure information that will be applied to develop andvalidate computational models utilized at Martec in their analyses. We will accomplish this objective through aseries of testing and characterization, and application of results. These tasks are primarily being completed byan MSc student, for which funding is being requested for his salary and experimental activities. Through thisresearch, we will develop a robust framework for understanding and assessing the failure of the materials usedin naval structures. Our ability to understand and predict failure through the use of numerical simulations willultimately result in the development of improved materials and protection products by Martec and Canadianpartners. This submission builds off a relationship developed during a visit to Martec in February 2017, whichwas supported by a Connect Grant.