使用工程塑料進行設計
工程塑料為製造商提供設計自由度,以滿足複雜零件的輕量化和成本需求。高品質的塑料材料可以快速大量生產,但需要整體模擬才能使材料符合個別產品的要求。Altair 提供一套完整的工程塑料解決方案,可快速可靠地生產創新的塑料零件。
透過數位化實現永續發展和氣候保護
對數位轉型的投資意味著對成功的投資,而塑膠產業在開發過程及其他方面需要功能強大的工具。 Altair 廣泛且強大的技術組合可實現永續的產品設計,幫助企業轉換塑膠價值鏈,並幫助使用者實現行業的永續發展和氣候保護目標。它還有助於各組織:
- 替代材料
- 提高回收材料的使用率
- 評估和減少碳足跡
掌握取決於工藝的材料行為
現代熱塑性塑膠部件開發要求公司在綜合模擬方法中考慮製造工藝、部件幾何形狀和材料。
使用短玻璃纖維或碳纖維增強的塑膠具有各向異性的特性,這取決於注塑成型過程中纖維的排列方式現代優化方法通過精確的數值材料描述來支援零件的設計和開發,在模擬過程中考慮塑膠的典型特性。
整體碳足跡評估與減排技術示範專案
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準確的性能預測
如何考慮生產過程?
最終的材料是在製造過程中「製造」出來的,最終的特性及其所有變化也是在製造過程中「製造」出來的。Altair 的綜合模擬驅動設計方法從塑膠部件的注塑成型開始,以改進對其機械性能的預測。以現代注塑成型模擬為基礎,將各向異性元件各點的纖維取向分佈轉移到機械元件的相應區域。這種新的材料描述在力學分析中考慮到了塑膠的典型特性,包括:各向異性、非線性、應變率依賴性、拉伸-壓縮不對稱、失效性能以及溫度依賴性。
高效材料建模
Altair® Multiscale Designer®以合理的數值成本在宏觀 FEA 中捕捉纖維增強材料的微觀力學效應,從而提高精度。根據注塑成型工藝所引起的與方向有關的纖維分佈,還採用綜合模擬方法對機械性能進行了各向異性描述。
結合塑膠中單根纖維的立體模型、纖維和塑膠材料的塑性和損傷規律,以及纖維在塑膠中的統計分佈,可以準確地表徵增強塑膠的行為。 整個部件所需的纖維取向分佈是通過對注塑成型過程的事先分析來確定的。Multiscale Designer 的材料模型可用於 Altair® OptiStruct®和 Altair® Radioss®以及其他第三方 FEA 求解器(如 ABAQUS、Ansys 和 LS-Dyna)中的隱式和顯式分析。
預測失敗
塑膠部件在壓縮或拉伸時的表現截然不同。其特性為非線性彈性,與負載率有關,迴圈負載可導致加熱和軟化。這同樣適用於沿纖維方向和垂直於纖維方向的載荷:塑性失效的各向異性。這些效應要求根據塑膠的具體情況建立特殊的失效模型。
塑膠零件的疲勞預測在設計過程中也至關重要,必須考慮的因素包括部件的局部強度、多軸性、老化、狀態、溫度和負載持續時間。PART Engineering 的 S-Life Plastics可對塑膠部件進行短期、長期和疲勞強度評估。
您的團隊需要單一材料資源嗎?
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無縫設計流程
Altair 為注塑成型部件的整個開發過程提供了一個開放的流程。使用多尺度技術進行材料建模可確保結果的高精度。透過 Altair 的專利授權系統,所有必要的模擬步驟均可在 Altair One ™中、使用 Altair 工具完成。您可無縫整合用於注塑成型或結構評估的解決方案。此外,Altair 工作流程也支援現有流程,並與 Moldflow、Moldex3D 以及 Abaqus、LS-Dyna 或 Ansys 無縫連接。
CAMPUS® 塑膠資料庫
Altair GmbH 是統一標準電腦輔助材料預選 (CAMPUS) 的官方軟體供應商,該資料庫是世界上最成功的塑膠材料資料庫,符合嚴格的國際標準。
CAMPUS 是唯一一個專門提供根據具有約束力的國際標準測量的真正可比材料數據的資料庫。它提供了寶貴的材料數據,包括所有相關類別的單點值和廣泛的多點數據(曲線),以及工程數據、耐化學性和老化特性、強大的搜尋和比較功能以及十種語言的數據表列印功能。
CAMPUS 是 Chemie Wirtschaftsförderungsgesellschaft mbH (CWFG), Frankfurt/Main 的註冊商標。
特色資源
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.
