Tag Archives: analysis

Strength Criteria of Composite Material supported by FEM analysis

Strength Criteria of Composite Material supported by FEM analysis Continue reading

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Static Condensation – FEM Analysis

Background Theory With “condensation” is indicated a procedure adopted for the structural analysis to carry out a matrix of stiffness and load boundary conditions of a detailed finite model (DFEM), starting from a raw global finite model (GFEM). The DFEM … Continue reading

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How much does it costs go to Space?? Cost Analysis

How much does it costs go to Space?? Cost Analysis Continue reading

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Verifying of a fuselage frame symmetrically loaded

The fuselage frame is a principal structural element of the aircraft shell structure, it is important for the following reasons: ensuring a certain shape to the fuselage, establishing an aerodynamic requirements that must be met. Frames used purely to have … Continue reading

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Frequency Response – Nastran SOL 111

Frequency response is the quantitative measure of the output spectrum of a system or device in response to a stimulus, and is used to characterise the dynamics of the system. It is a measure of magnitude and phase of the … Continue reading

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Vibration Analysis – Nastran SOL 103

Vibration Analysis – Nastran SOL 103 Continue reading

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1.1. Introduction, Orthotropic Lamina

1 . Analysis of the Orthotropic Lamina 1.1. Introduction 1.2. Hooke’s Law 1.3. Relationships between elastic constants and Matrix of Elasticity 1.4. Matrix of Elasticity   2. Classical theory of Laminates 2.1. Introduction 2.2. Basic Formulas 2.3. Laminate stiffener matrix 2.4. … Continue reading

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Composite Analysis Tool

Composite Laminate Analysis Excel file that allows to calculate the stress and strains in a Laminate composite plates. The file is shown below and can be downloaded here: DOWNLOAD Composite Laminate Analysis

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Non Linear Analysis SOL 106

In the most of cases the nonlinear effects in structures occur due to nonlinear material behavior and large deformations. Geometric nonlinearity becomes relevant when the structure is subjected to large displacement and rotation. Geometric nonlinearity effects are prominent in two … Continue reading

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Linear Buckling Analysis – SOL 105

Theoretical Background Buckling analysis assesses the stability characteristics dictating the integrity limit of a structure. Let us start with a linear equation of motion for a preloaded structure: where M,C, K and  Kd are mass, viscous damping, material and differential stiffness … Continue reading

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