@article{Thakur200965, title = "A survey of \{CAD\} model simplification techniques for physics-based simulation applications ", journal = "Computer-Aided Design ", volume = "41", number = "2", pages = "65 - 80", year = "2009", note = "", issn = "0010-4485", doi = "http://dx.doi.org/10.1016/j.cad.2008.11.009", url = "http://www.sciencedirect.com/science/article/pii/S0010448508002285", author = "Atul Thakur and Ashis Gopal Banerjee and Satyandra K. Gupta", keywords = "\{CAD\} model simplification", keywords = "Physics-based simulation ", abstract = "Automated \{CAD\} model simplification plays an important role in effectively utilizing physics-based simulation during the product realization process. Currently a rich body of literature exists that describe many successful techniques for fully-automatic or semi-automatic simplification of \{CAD\} models for a wide variety of applications. The purpose of this paper is to compile a list of the techniques that are relevant for physics-based simulations problems and to characterize them based on their attributes. We have classified them into the following four categories: techniques based on surface entity based operators, volume entity based operators, explicit feature based operators, and dimension reduction operators. This paper also presents the necessary background information in the \{CAD\} model representation to assist the new readers. We conclude the paper by outlining open research directions in this field. " }