“復(fù)雜裝備研發(fā)數(shù)字化工具中的計(jì)算力學(xué)和多場(chǎng)耦合若干前沿問(wèn)題”立項(xiàng)報(bào)告

張洪武 鄭勇剛

摘 要：（1）強(qiáng)沖擊荷載下結(jié)構(gòu)破壞過(guò)程的建模與關(guān)鍵算法；（2）材料與結(jié)構(gòu)一體化的熱力耦合多尺度模型與算法；（3）考慮多場(chǎng)耦合與不確定性的結(jié)構(gòu)優(yōu)化設(shè)計(jì)和反問(wèn)題方法；（4）新一代集成化計(jì)算力學(xué)軟件平臺(tái)設(shè)計(jì)理論和方法；（5）車(chē)身鋼板輕量化與碰撞安全性的數(shù)字化設(shè)計(jì)；（6）特種裝備結(jié)構(gòu)的毀傷與服役過(guò)程安全性的數(shù)值仿真。項(xiàng)目將在復(fù)雜裝備產(chǎn)品設(shè)計(jì)數(shù)字化工具的計(jì)算力學(xué)和多場(chǎng)耦合理論和方法的前沿研究方面取得進(jìn)展與創(chuàng)新。在強(qiáng)動(dòng)荷載作用下多物質(zhì)響應(yīng)分析理論、數(shù)值方法及高應(yīng)變率下材料動(dòng)態(tài)行為，材料與結(jié)構(gòu)熱力耦合的非線性多尺度本構(gòu)模型和高性能多尺度算法，多場(chǎng)耦合下考慮不確定性度量與傳播的結(jié)構(gòu)優(yōu)化與工程反問(wèn)題理論和高效算法，面向多場(chǎng)耦合與多尺度分析的新一代計(jì)算力學(xué)軟件平臺(tái)研發(fā)，多場(chǎng)耦合分析及不確定性優(yōu)化在車(chē)輛覆蓋件成形及碰撞安全性設(shè)計(jì)中的應(yīng)用研究以及特種裝備結(jié)構(gòu)服役過(guò)程和沖擊載荷下毀傷的數(shù)值模擬、目標(biāo)結(jié)構(gòu)的防護(hù)分析等研究方面取得重點(diǎn)突破；在主要研究方面達(dá)到國(guó)際先進(jìn)水平，使我國(guó)相關(guān)研究在國(guó)際學(xué)科前沿占據(jù)一席之地，同時(shí)為國(guó)防與民用高技術(shù)裝備自主創(chuàng)新設(shè)計(jì)提供關(guān)鍵建模理論、先進(jìn)數(shù)值分析方法和技術(shù)支撐，形成自主知識(shí)產(chǎn)權(quán)的新一代大規(guī)模計(jì)算力學(xué)和多場(chǎng)耦合軟件系統(tǒng)與研發(fā)平臺(tái)，培養(yǎng)計(jì)算力學(xué)領(lǐng)域的創(chuàng)新型人才隊(duì)伍，為我國(guó)裝備制造業(yè)實(shí)現(xiàn)由大到強(qiáng)的轉(zhuǎn)變做出一份貢獻(xiàn)。

關(guān)鍵詞：計(jì)算力學(xué) 多場(chǎng)耦合 復(fù)雜裝備

Application Report for the Project "Some Frontier Problems of Computational Mechanics and Multi-field Coupling in Digital Tool for Development of Complex Equipment"

Zhang Hongwu Zheng Yonggang

（Dalian University of Technology）

Abstract：Aiming at common frontier problems in basic theories， advanced algorithms and software packages of computational mechanics in the design， manufacturing and service of major civil and defense equipments， this project will perform investigations on the following subjects：（1） modeling and computational algorithms for complex highly-nonlinear mechanical behavior analysis considering multi-field coupling of materials and structures；（2） nonlinear multi-scale model of thermal-structure coupling and key algorithms for integrated design of materials and structures；（3） structural and multidisciplinary optimization considering uncertainty and multi-function；（4） structure and design pattern of new-generation integrated software platform of computational mechanics. Six projects will be conducted：（1） Modeling and key algorithm for structural failure under intense impulsive loading；（2） Multiscale modeling and algorithms for thermal-mechanical coupled problems on structures integrating with materials；（3） Methods of structural optimization and inverse problem considering multiphysics coupling and uncertainty；（4） Design theories and methods for new generation integrated software platform for computational mechanics；（5） Digital design of light weight of sheet metal and crashworthiness performance for vehicle body；（6） Numerical simulation on the damage and service process security of special equipment and structure. In related major directions， the accomplished research will lead to a reasonable position in the international discipline fronts. The project will also provide essential modeling theories and numerical methods for novel design of civil and national defense high-tech equipments， and realize self-owned copyright new-generation large scale computational mechanics and multi-field analysis platform. Through this project， young professionals in the field of computational mechanics will also be trained， which will contribute to the development of the equipment manufacturing industry.

Key Words：Computational mechanics； Multi-field coupling； Complex equipment

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