# Actus Potentia (http://www.actuspotentia.com) Releases MechMat-Power – An Interactive Learning Tool for Mechanics of Materials

## Actus Potentia’s Mechanics of Materials software (http://www.actuspotentia.com/MechMat.shtml) is a 24-7 tutor that will help students complete their work in fraction of the time, get better grades, and become expert problem solvers. Unlimited practice problems on seven major topics engage students in learning through ascending steps of question, answer, and feedback.

MechMat - Power

Almost all Mechanical, Civil, Construction, Mining, and Aerospace Engineers engaged in production, manufacturing, and design need a strong background in stress analysis. MechMat-Power is a learning tool to attain that background in the software’s structured environment that guides students through multiple steps to the solutions of Mechanics of Materials problems. The software does not have a limited problem bank; students can pose their own problem and solve the problem with the help from the software. The software provides immediate feedback that allows students to fix their mistakes and develop strong foundation in Mechanics of Materials from the guided problem solving.

The software includes seven modules, namely, stress-strain transformation and principal stress-strain, axial loading, torsion loading, beam bending, buckling, pressure vessels, and combined loading. This completely covers the topics in a Mechanics of Materials course at colleges and universities. All modules show pop-up help screens when students have difficulties in any stage of a multistep problem.

By using MechMat-Power, the stress-strain transformation problems can be solved in three different ways with increasing sophistication. Firstly, the concept of transformation is demonstrated visually where students can rotate a material element and watch the value of the stresses changing. Students visualize that for certain angles of rotation, the shear stress goes to zero identifying the orientation of the principal axes. Secondly, students can use the method of Mohr’s circle to calculate the values of the principal stresses and the orientation of the principal axes. Thirdly, a method utilizing Concept Map combines stress-transformation with generalized Hooke’s Law, material properties, and strain gauge.

Students can pose their own problem in the modules on axial and torsion loading. These modules guide the students through an interactive question-answer session to solve determinate and indeterminate problems with solid, hollow, and composite shafts.

The module on beam bending uses the method of singularity functions to guide the students in determining shear force, bending moment, stresses, and deflection of the beam. This module guides the students through an interactive question-answer session to solve determinate and indeterminate problems with beams of various cross sections.

The module on combined loading puts axial load, torsion load, and bending together. This module guides the students through an interactive question-answer session to solve problems with bent and asymmetric shafts of circular and non-circular cross sections.

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Ambar Mitra