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  • Difference between Elastic Limit Yield Point - Physics Forums
    Hi All I am trying to understand a stress strain curve for a ductile material But I am struggling with understanding the difference between the Elastic Limit and the Yield Point I define these terms as:- Elastic Limit - Is the point on the stress strain curve where the material will
  • Is g Negative? Understanding the Confusion of Definitions
    Hi guys, I understand that g is by definition positive, as in the Gravitational field strength However, my school's notes has defined g as -(GM) r^2 I don't understand what's that negative sign for, and in what scenario is the negative sign used? By the way, it also defined g as -(d phi dr)
  • Computing Neutron Source Strength - Your Advice Welcome
    Greetings to all, I know activity for a Am-Be neutron source I want to compute strenght source in neutrons s Yours advices are welcome Thank you!
  • Does Misery Enhance Our Strength and Define Happiness?
    Discussion Overview The discussion explores the relationship between misery and strength, as well as how misery may define happiness Participants examine the implications of misery from evolutionary, psychological, and societal perspectives, considering both individual experiences and broader societal trends
  • What determines heaviness of objects in Space? - Physics Forums
    The discussion revolves around the concepts of heaviness, gravity, mass, and weight of objects in space, particularly focusing on planets and stars Participants explore the implications of these concepts in the context of free fall and gravitational interactions One participant questions why planets and stars are considered heavy enough to exert gravity and not fall off into space Another
  • MCNP6. 2 - Source particle started in a cell of zero importance
    The discussion revolves around the challenges of defining a surface source in MCNP6 2 for a cylindrical geometry, particularly focusing on the implications of setting the importance of certain regions to zero and the resulting errors encountered during execution Participants explore various approaches to address the issue of particles starting in a cell of zero importance and the handling of
  • What is the definite definition of strength? - Physics Forums
    The discussion centers around the ambiguity of the term "strength" in materials science, particularly in the context of mechanical engineering Participants explore its various interpretations, such as yield strength, ultimate strength, and other forms of strength, and how these relate to materials like titanium and steel Some participants note that "strength" can refer to different types of
  • Why Is My Bungee Cord Tension Calculation Incorrect?
    The discussion revolves around calculating the tension in a bungee cord when it is stretched beyond its initial limits The problem involves understanding the behavior of the spring constant, which varies depending on the amount of stretch, and how this affects the tension calculation Conceptual clarification, Assumption checking, Mathematical reasoning Participants explore the implications
  • Wall Strength of a Shipping Container - Physics Forums
    The discussion centers around determining the stress on the corrugated steel walls of shipping containers when hooks are bolted to them Participants explore methods for modeling the load applied by the hooks, including finite element analysis (FEA) and various calculations related to the strength of the materials involved The conversation includes considerations of stress distribution
  • What is the Difference Between Plane Stress and Plane Strain?
    The discussion centers on the differences between plane stress and plane strain, exploring their definitions, implications, and relationships Participants seek clarification on whether one condition implies the other and under what circumstances One participant requests clarification on the difference between plane stress and plane strain, indicating a lack of understanding of the terms





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