How Much Force to Dent Steel and Crack Asphalt in a Sci-Fi World?

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SUMMARY

This discussion centers on the theoretical forces required to dent military-grade steel doors and crack asphalt, specifically in a fictional context involving a genetically enhanced character. The participant emphasizes the necessity of knowing the exact material composition and performing hardness tests to determine the required force accurately. It is established that theoretical calculations are insufficient without empirical data on material properties and composite structures. The conversation highlights the complexity of material science in relation to physical impact assessments.

PREREQUISITES
  • Understanding of material science principles, including hardness testing
  • Knowledge of military-grade materials and their properties
  • Familiarity with composite materials and their behavior under stress
  • Basic physics concepts related to force and impact
NEXT STEPS
  • Research methods for conducting hardness tests on various materials
  • Explore the properties of military-grade steel and its applications
  • Study the mechanics of composite materials and their stress responses
  • Investigate the physics of impact forces and their calculations
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Writers, material scientists, engineers, and anyone interested in the physical properties of materials and their applications in fictional scenarios.

jasocintorino
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I'm looking or some Information - as this is a lesson in learning for me... I'll ask random questions that can hopefully be answered for a book I am starting, this will be my second book.

The girl is a Genetic Experiment whose blood was scientifically altered to include a cheetah's DNA strand - Mixing these together and using them on a young girl, the girl grew cat-like ears, and a tail just like a cat, this includes the speed, reflexes, and other such innate abilities that are inherent to the cheetah family - Though because she has a human body, she has x7 the attributes of a cheetah.

1. Detail; A Solid Military Standard Steel Reinforced Door that can stop explosions from Grenade Launchers - How much force, in theory, would it take to place a 4-inch deep, seven-inch foot-conformed dent into a door of such attributions?

2. A Hybrid, say at the meeting of the front and back door of the car - How much force would it take to place a seven-inch dent in it?

3. Standard 11 inch assfault of the road, to crack this, and make a shield-like imprint from landing harshly upon the pavement - How much force would this take?

I believe these questions are theoretical, and I hope they can be answered -
 
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They aren't theoretical. You need to know the exact material composition of the doors. And if I remember my freshman material science course correctly, you need to perform a hardness test. This is far from theoretical. I don't know how military doors are made, but even if you can find detailed hardness values for each type of material used, that tells you nothing about the hardness of a composite material unless you also know the type of composite material you're dealing with and the exact values of each material composite. And I imagine that the amount of pressure you need to exert also depends on which part of the door you're applying the force on.

The best answer would be to perform a hardness test yourself on these items. I don't see any easy way out of this.