MSC 软件全球发布 Marc 2015 为高级非线性仿真提供全新材料模型
MSC 软件日前宣布推出新版Marc 2015。Marc非线性与多物理场仿真解决方案一直被产品制造商所依赖，这些制造商覆盖从汽车零件到橡胶部件，从复杂的医疗设备到消费品电子设备等多个领域。
为满足新产品设计的性能标准，对新材料的关注度日渐升温，因此开发团队需要依靠仿真来获得对产品设计的信心。为应对这些挑战， Marc 2015 引入了针对弹性体、热塑性塑料及金属塑性的新型材料模型。该版本还增强了单元技术、接触分析算法、自适应网络划分技术及用户界面。
该版本的亮点包括：
新材料模型既能解决各种新的问题类型又能提高置信度
• Marc 2015 引入了新型材料模型，可仿真弹性体的复杂动态行为、热塑性塑料的永久变形以及金属成型中常见的各向异性塑性变形。
增强粘性接触功能，简化设置且易于使用
• 装配时，通常采用离散的实体（如铆钉、螺栓或点焊接）将零部件连接在一起。对离散实体进行建模往往非常昂贵，因此会假定一个统一的刚体“粘结”。虽然方便使用，但这种方法通常会导致结构过于刚硬。为克服这一缺陷，Marc 2015 版提供了一种粘性接触行为，使用户能够沿法向和切向采用有限的刚度，从而改善了接触区的应力结果及整体形变。
全新的单元技术可实现高效计算资源应用
• Marc 2015 引入了新的单元系列。与传统的低阶三角形和四面体单元相比，它简单易用，改进了弯曲行为，可用于仿真可压缩或者几乎不可压缩的行为。新单元只需较少的数量就能准确地表征剪切行为，有助于节约系统资源、以较低的成本获得更好的结果。
新的全局自适应网格划分方法可提高准确度
• 引入了两种新功能来改进全局自适应网格划分。 o 在运用全局自适应网格划分技术对橡胶零部件和加工问题进行仿真时，新的几何体保存方法可提高准确度。 o 采用在三维裂纹尖端激活的精细模板网格，能够准确地预测能量释放率、应力强度因子及裂纹扩展方向，同时可保持较低的计算成本。
用户界面提升了易用性和效率
• 已对 Marc 的用户界面 Mentat 的若干部分进行了改进，以便于使用、提高生产率。
MSC Marc 2015.0 with Documentation | 1.0 Gb
MSC Software, a provider of simulation software, has released Marc 2015. This release has new material models for elastometers, thermoplastics and metal plasticity. It also includes has enhancements to element technology, contact, adaptive meshing and the user interface.
This release’s new material models let users simulate complex dynamic behavior of permanent deformation in elastometers, thermoplastics and metal forming.
For more cohesive contact simulation, Marc 2015 lets finite stiffnesses be applied in the normal and tangential direction. This improves stress results in the contact zones and overall deformation. This can be used for discrete entities such as rivets, bolts or spot welds.
Also added is a family of elements that has improved bending behavior and can be use for compressible or nearly incompressible behavior. By using fewer elements to represent shear behavior, new elements can help save system resources, the company states.
According to a company press release, two new capabilities have been added to enhance global adaptive meshing:
– A geometry-preserving methodology that provides improved accuracy when using the global adaptive meshing technique for simulating rubber components and manufacturing problems.
– Usage of a refined template mesh activated at the 3D crack tip lets users predict energy release rate, stress intensity factor and crack propagation.
Mentat, the software’s user interface, has also been improved for ease of use and productivity.
About MSC Software
MSC Software is one of the ten original software companies and the worldwide leader in multidiscipline simulation. As a trusted partner, MSC Software helps companies improve quality, save time, and reduce costs associated with design and test of manufactured products. Academic institutions, researchers, and students employ MSC’s technology to expand individual knowledge as well as expand the horizon of simulation. MSC Software employs 1,100 professionals in 20 countries.
Name: MSC Marc
Version: (64bit) 2015.0
Home:http://www.mscsoftware.com
Interface: english
OS: Windows XP / Vista / 7even / 8 / 8.1
Size: 1.0 Gb
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