使用工程塑料进行设计
工程塑料为制造商提供了满足复杂零件轻量化和成本要求所需的设计自由度。 高质量的塑料材料可以快速大批量生产,但需要全面仿真来根据单个产品要求定制材料。 Altair 提供一整套工程塑料解决方案,可快速可靠地生产创新塑料部件。
通过数字化实现可持续发展和气候保护
投资数字化意味着为成功而投资,塑料行业需要强大的工具来应对开发过程及其他过程。 Altair 广泛而强大的技术组合可实现可持续的产品设计,帮助组织转变塑料价值链,并实现行业的可持续发展和气候保护目标。 它还可以帮助组织:
- 替代材料
- 提高回收材料的利用率
- 评估和减少碳足迹
优化塑料零件
仿真通常用于验证成熟组件的性能,但如果零件的形状错误,即使是最好的材料也无法弥补性能损失。 现代材料与最佳几何布局相结合,发挥其潜力,这些布局源自为承受操作中遇到的应力和应变而量身定制的设计。
借助拓扑优化,通过确定最有效的材料放置和载荷路径来设计理想的组件。 在后期开发阶段,形状优化可用于尺寸标注,考虑局部材料效应并允许进一步改进组件设计。
整体碳足迹评估和减少技术演示
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准确的性能预测
如何考虑制造过程?
最终材料是在制造过程中“制造”的,最终属性及其所有变化也是如此。 Altair 的集成仿真驱动设计方法从塑料部件的注塑成型开始,以提高对其机械性能的预测。 以现代注塑成型仿真为基础,将部件每个点的各向异性纤维取向分布转移到机械部件中的相应区域。 这是通过对材料的新描述提供的,该描述在机械分析中考虑了塑料的典型特性,包括:各向异性、非线性、应变率依赖性、拉伸-压缩不对称性、失效性能和对温度的依赖性。
高效的材料建模
Altair® Multiscale Designer® 以合理的数值成本在宏观 FEA 表示中捕获纤维增强材料的微力学效应,从而提高了精度。 基于注塑工艺引起的方向依赖性纤维分布,还使用集成仿真方法描述了机械性能的各向异性。
结合塑料中单根纤维的三维模型、纤维和塑料材料的塑性和损伤规律,以及纤维在塑料中的统计分布,可以准确地表征增强塑料的行为。 所需整个部件的纤维取向分布是通过对注塑工艺的事先分析来确定的。 Multiscale Designer 的材料模型可用于 Altair® OptiStruct® 和 Altair® Radioss® 以及其他第三方 FEA 求解器(如 ABAQUS、Ansys 和 LS-Dyna)中的隐式和显式分析。
预测失败
塑料部件在压缩或拉伸时的行为非常不同。 属性是非线性弹性的,取决于负载率,循环负载会导致加热和软化。 这同样适用于沿纤维方向和垂直于纤维方向的载荷:塑料在各向异性方面失效。 这些影响需要针对塑料量身定制的失效特殊建模。
塑料零件的疲劳预测在设计过程中也至关重要,必须考虑局部部件强度、多轴度、老化、条件、温度和载荷持续时间等因素。 PART Engineering 的 S-Life 塑料对塑料部件进行短期、长期和疲劳强度评估。
您的团队需要单一的材料资源吗?
请看这里
无缝设计流程
Altair 为注塑成型组件的整个开发提供了一个开放的流程。 使用多尺度技术进行材料建模可确保结果的高精度。 所有必要的仿真步骤都可以通过使用 Altair One™ 中的 Altair 工具完成,方法是使用 Altair 的专利许可系统。 注塑或结构评估的专有解决方案可以无缝集成。 因此,Altair 工作流程支持您现有的流程,并与 Moldflow、Moldex3D 以及 Abaqus、LS-Dyna 或 Ansys 无缝对接。
CAMPUS® 塑料数据库
Altair GmbH 是统一标准计算机辅助材料预选 (CAMPUS) 的官方软件供应商,CAMPUS 是世界上较为成功的塑料材料数据库,遵守严格的国际标准
CAMPUS 是唯一一个专门提供根据具有约束力的国际标准测量的真正可比材料数据的数据库。 它提供有价值的材料数据,包括所有相关类别的单点值和广泛的多点数据(曲线),包括工程数据、耐化学性和老化性能、强大的搜索和比较功能以及十种语言的数据表打印功能。
CAMPUS 是 Chemie Wirtschaftsförderungsgesellschaft mbH (CWFG),Frankfurt/Main 的注册商标。
特色资源
Sustainability and Climate Protection Through Digitalization
How to choose the right material, the right design, and the right process to develop solutions that minimize carbon emissions and bolster your bottom line.
A step-by-step guide for transforming your plastics engineering value chain to develop solutions that optimize performance, minimize carbon emissions, and gain a competitive edge.
What you will learn:
- Material selection and testing to minimize carbon emissions with Global Warming Potential evaluations alongside traditional performance and cost metrics
- A step-by-step simulation-driven approach to accelerate design space creation, explore variants, and better optimize lightweight plastic parts
- Ways to predict and prevent critical problems such as injection mold core fractures or failures to optimize production operations
- Improve manufacturability using multiscale material modeling
- How to gain a competitive edge with faster time to market through first-time-right injection molding methods, simulation and rapid variant analyses to optimize part, mold and parameters for manufacturing
Designer and Simulation: A Perfect Fit for Sustainable Products
When it comes to plastics, the topic of sustainability is increasingly coming into focus in the industry. The packaging solutions and recycling specialist ALPLA Group, an Austrian company operating internationally has set itself high standards in this regard. To achieve its goals, the company relies on virtual product design to drive its development, with Altair’s adaptive simulation solutions playing a vital role. This article features an actual customer solution to demonstrate the value of simulation and provides an outlook on ALPLA’s future virtual product development strategy, within which the democratization of simulation is particularly important.
Lighter, Stronger, Quieter Vehicles - New Design Space Workflow for Structural Inserts at Sika
Sika is a specialty chemicals company, and a leader in developing and producing systems and products for bonding, sealing, damping, reinforcing, and protecting in the building sector and automotive industry. Offering a wide range of BIW noise reduction and vibration damping solutions and addressing problems encountered in automotive development, Sika is a key development partner for OEMs and suppliers. Sika’s structural systems team focuses on solutions reinforcing the customer’s BIW and NVH issues.
Using the Altair design space workflow, Sika engineers eliminated time-consuming steps in their workflow. This let them make faster decisions - instead of hours in the prior standard workflow, it now only takes minutes. Modeling time was reduced by 70%, giving the team to spend more time gaining a deeper knowledge of the part and its improvement.
Sika won the 2018 Altair Enlighten Award with its ultra-lightweight constrained layer material composite for structure-borne noise reduction.
From Metal to Plastics: Sustainability, Lighter Weight at Lower Costs
Altair solutions enable X-Plast to improve a structural part for Knorr-Bremse Rail Systems. Owing to its low environmental impact, rail is one of the most sustainable means of transportation. To ensure a safe and reliable operation of railway components for more than 30 years these parts have to be strong and durable to meet the many requirements. They must withstand extreme temperature and climate conditions, as well as vibrations and high mechanical loads, even impact from stones.
