What is Torque? - A measure of how much a force acting on an object causes that object to rotate
Material Properties: Strength of Material - Simple Compression Studies, Plasticity and Adiabatic Shear Bands, Metastable Phases, Phase-Change Measurements, Rear-Surface Studies etc.
Material Selection Guide - Abbreviations and Acronyms, Metals,Plastics, Coefficient of Friction Testing, Compressive Strength Testing, Deflection Temperature Testing, Metal Matrix Composites, Plastic Recycling Codes etc
Cast Iron - Cast iron usually refers to grey cast iron, but can mean any of a group of iron-based alloys containing more than 2% carbon ... read more
The Basics of Torsion Mechanics - The general principle of inertia as a generalization of Newton's mechanics, Torsion Interactions, Torsion mechanics as a generalization of Einstein's mechanics
A Study on Controlled Low Strength Material - The aim of this research is to address CLSM’s engineering properties and chemical resistance. Various tests were done to quantify the workability, strength and chemical resistance.
Analysis of Stress - State of Stress at a Point, Principal Stresses and Directions, Maximum Shear Stresses and Directions, Mohr's Circles, The Maximum Normal Stress Theory, The Maximum Shear Stress Theory etc
Principal Stress Calculator - Calculator Introduction, Equations behind the Calculator. The same page has links to Plane Strain Transform Calculator, Elastic Constant Converter and Plane Stress Transform Calculator
Poisson's Ratio - Poisson's ratio is a measure of the simultaneous change in elongation and in cross-sectional area within the elastic range during a tensile or compressive test.
Torque - Units, Moment arm formula, Static equilibrium, Force at an angle, Relationship between torque and power
Eformulae - Strength of Materials - Stress, Strain, Hooke's Law, Piosson's Ratio, Unit Volume Change, Elongation due to its weight, Thin Rings, Strain Energy, Mohr's Circle for Biaxial Stress, Torsion formula for Thin walled tubes, Torsion formula for Circular Shafts, Flexure Formula, Shear Stress In Bending, Thin-Walled Hollow Members (Tubes), Stress Concentration, Curved Beam in Pure Bending
Transformation of Coordinate Systems -- Geographic Coordinate System Transformation Methods, Geographic Coordinate System Transformation Formulas, Abridged Molodenski Transformation, Helmert Transformation
Coordinate System Transformation -- Equations for converting between cartesian and cylindrical coordinates, Equations for converting between cylindrical and spherical coordinates, Equations for converting between cartesian and spherical coordinates
Damping Equations -- What are damping functions?, Inverse Logarithmic Fades
Finite Element Analysis -- Finite Element Analysis Hardware and software, An introduction to Finite Element Analysis
Matrix Algebra -- Review of Matrix Algebra for FEM, Eigenvalues and eigenvectors, Inverse Matrices
Nonlinear FEA of piezoelectric transducers -- Finite Element Analysis of Piezoelectric Materials, The limitations of FEA packages with respect to piezoelectric materials, General FEA questions
FEM Accuracy -- Finite Element Method - Accuracy Improvement by Using Both E and H Formulations with Applications to Waveguide Discontinuity Problems
The open Finite Element Project -- Finite element stress analysis (FEM) is a standard tool for engineers to check mechanical properties of parts they construct. The theory behind (linear) FEM is known since many years, and these algorithms need only a modest amount of processing power
A New Finite Element Formulation for Electromechanics -- A new finite element formulation for the solution of electromechanical boundary value problems is presented. As opposed to the standard formulation that utilizes a scalar electric potential as nodal variables, this new formulation implements a vector potential from which components of electric displacement are derived.