Sobre o uso de sistemas de computação algébrica na solução de problemas de mecânica das estruturas

• Autor(a) principal: Rigitano, Antonio Carlos [UNESP]
• Data de Publicação: 2011
• Outros Autores: Bastos, Paulo Sérgio dos Santos [UNESP], Oliveira Neto, Luttgardes de [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.5335/ciatec.v3i1.2185; http://hdl.handle.net/11449/134677
• topic: Structural mechanic; Computer algebraic systems; Influence lines; Mecânica das estruturas; Sistemas de computação algébrica; Linhas de influência

This text aims to show the use of Computer Algebra Systems (CAS) in Structural Mechanics. Nowadays it becomes feasible transfer mathematical laborious and discouraging operations for this kind of software, which allows devoting more time to understand physical aspects of engineering problems. To exploit this potential, we expose the deduction of analytical expressions of influence lines for continuous beams under four supports using Force Methods with algebraic manipulations performed in Mathematica, draw the attention to the possibility of use of free system wsMaxima. The response functions obtained are polynomials, an alternative way of structural analysis instead of matrix methods. These functions can be helpful to obtain numerical values and graphical display, motivating procedure introduced in topics of lectures offered by the Faculty of Engineering of Bauru. At the end it is shown a case study in order to disclose the method.