SkyCiv Documentation

Your guide to SkyCiv software - tutorials, how-to guides and technical articles

1. Home
2. SkyCiv Section Builder
3. Analysis
4. Getting Started

# Introduction

SkyCiv SB Analysis is the design tool for calculating cross-sectional stresses resulting from combinations of applied forces and bending moments. The software is capable of the calculating:

1. Normal stresses from axial force and bending;
2. Shear stresses from shear force and torsion;
3. Equivalent stresses (von Mises) with comparison to limit stress;

All results can be evaluated numerically and graphically and displayed in a visualization. Furthermore, you can print the report, including all relevant data and a user-defined cross-section graphic.

#### Where can you find the RS Slab Design Module?

When you are finished with define the section, you can go to the analysis by clicking on “Analysis” section in the left menu panel

#### Step 1 – Assign Forces and Options

• Applying Forces
Axial – An applied axial force, where compression is positive. The load is applied at the centroid.
Shear Y –  Applied  Shear Force in the Y Direction. Positive shear is in the direction of the positive axis. Shear forces applied at the shear center.
Shear Z – Shear Force in the Z Direction. Positive shear is in the direction of the positive axis. Shear forces applied at the shear center.
Torsion – Applied torsional moment, counterclockwise is positive, following the right-hand-rule.
Bending Y – Applied bending moment about Y-Axis. The moment is positive when it compression right fibres of section. The load is applied at the centroid.
Bending Z – Applied bending moment about Z-Axis. The moment is positive when it compression top fibres of section.

• Applying Options

Include Renders ?????

Display Mesh with Render ?????

Mesh Granularity – The mesh granularity adjustment is used to control how many elements are used in the analysis.

#### Step 2 – Run Analysis

To start calculation click “Run Analysis”

#### Step 3 – View Results

You may select among the following for graphical results in the right menu panel “Analysis Result” that appears after finishing of analysis:

Primary Stresses

Normal Stress

Axial – stress resulting from the axial load

Bending Y – stress resulting from the bending moment Myy

Bending Z – stress resulting from the bending moment Mzz

Shear Stress

Resultant Shear Y – resultant shear stress resulting from the shear force Vy

Resultant Shear Z – resultant shear stress resulting from the shear force Vz

Torsion – shear stress resulting from the torsion moment

Combined Stresses

Normal – normal stress resulting from all actions

Shear – shear stress resulting from all actions

Von Mises – von Mises stress resulting from all actions

Major Principal – major principal stress resulting from all actions

Minor Principal – minor principal stress resulting from all actions

If click on the picture Result Render above the table it will show a graphical result

If it needs to get a PDF report you can get it by clicking on the Download Report button in the bottom part of the Results Table