Stress analysis

Following steps shall be carried for Piping Stress Analysis of any system, Identify the Critical lines from the P&ID based on the criteria mentioned in the Piping Stress Analysis Design Basis. Prepare a Stress Critical Line list Categorize the lines as Category-1 (Extensive computer analysis required), Category-2 (Visual Analysis or by Nomo graphs, etc.) and Category-3 (Non-critical lines) Segregate the ...

Softwares available for flexibility calculation/stress analysis Manual analysis has its limitation on the number and type of supports, the variation in temperature to which the system is subjected and the like. Hence solving a real live size problem is difficult or impossible by the manual methods. There are number of softwares available to handle complex problems. The first computer analysis ...

Table of contents: 1. Need for Spring Hangers 2. Types of Spring Hangers 3. Selection Procedure of Variable Effort Springs 4. Selection procedure of Constant effort springs 5. Spring Selection procedure in Caesar II 1. Need for Spring Hangers: Generally the use of spring hangers shall be the last resort for a Stress Engineer. However, in some cases depending on ...

Introduction to Rubber Lined Piping: Corrosion is a menace in operating and maintaining a Chemical Process Plant. Hence given a choice one would be tempted to dispense away with Steel all together as a material of construction for piping used in a Chemical Plant. Unfortunately it is not practical to undermine the usefulness of Steel in sustaining the Pressure and ...

Topics covered Introduction Circumferential or Hoop Stresses Longitudinal Stresses Radial Stress Introduction to Induced Stresses: When the ends of the pipe ends are closed and pipe is subjected to an internal pressure ‘P’ there are various stresses that develop in the pipe. Each element of pipe are subjected to the below mentioned stresses which act in the direction as shown ...

Introduction to Gimbal Expansion Joint: The gimbal pipe expansion joint is basically same as the hinge type, except that instead of being limited to deflection in only one plane gimbal Expansion Joints are used to absorb angular rotation in any plane, using two pairs of hinges attached to a common floating gimbal ring. Gimbal systems generally consist of two gimbal ...

Pressure Balanced Expansion Joint The pressure balance expansion joint or bellow design, which basically is a combination of a Flow Bellow and a Balancing Bellow, comes handy in addressing many situations. The axial thrust imposed by the imbalance area of the Bellow under internal pressure is a main concern in designing the Piping System employing such Bellows. The conventional method of ...

Further to my previous post regarding different types of expansion joints, this post details out 1. Universal expansion joint 2. Hinged expansion joint UNIVERSAL EXPANSION JOINT: Universal expansion joints contain two bellows with multiple convolutions joined by a center pipe or spool. These joints, also known as double or tandem bellows expansion joints are used for the purpose of absorbing any ...

Simple expansion joint is one of different types of bellows used in piping system mentioned in my previous post . BELLOW TYPES: Simple Expansion Joint Universal Expansion Joint Pressure Balanced Expansion Joint Hinged Expansion Joint Gimbal Expansion Joint Below are the illustrations of the typical situations for employing Simple Expansion Joint type of Bellows depending upon the application and configuration of the piping ...

Introduction to Expansion Bellows In a piping system a Expansion joints alternately known as Bellows are like sealed springs. Sealed because it is required to contain the fluid pressure which is flowing through it and spring because it is required to respond to the movement of the connected piping without offering appreciable stiffness to the piping system. An expansion joint/bellow ...