Bone has a Young's modulus of about 18 x 109
Pa. Under compression, it can withstand
a stress of about 160 x 106
Pa before breaking. Assume that the femur is 0.5 m long and
calculate the amount of compression this bone can withstand without breaking.
aB = Y EB = Y (deltaL / Lo)
deltaL = (aB / Y) Lo
here aB = 160 × 106
Pa; Y = 18 × 109
Pa
deltaL = (160 × 106
Pa / 18 × 109
Pa) 0.5 m = 4.3 × 10-3
m = 4.3 mm
Bones can withstand a considerable amount of pressure. On average, bones can withstand compressive forces of around 180 Mpa (megapascals) to 230 Mpa. However, this can vary depending on the type of bone and the direction of the force applied.
Bone is strong under tension due to its composition of collagen fibers, which provide flexibility and resistance to stretching, and mineralized bone matrix, mainly made of calcium and phosphorus, which give it hardness and strength. This combination allows bone to withstand tension without breaking easily.
Bone is typically weaker under tension forces compared to compression forces. This means that bone is more likely to break or fracture when subjected to stretching or pulling forces rather than pushing or compressive forces.
The flexibility of bone is due to its composition of collagen fibers, which allow for some degree of bending and deformation under stress. The tensile strength of bone is primarily due to its mineral component, particularly hydroxyapatite crystals, which provide rigidity and resistance to deformation. Together, these components contribute to the overall strength and flexibility of bones in the human body.
the only movable bone is the mandible (jaw)
Young's modulus is determined experimentally by applying tensile strain (pulling on the ends) to a number of samples of the material under investigation and plotting the strain versus the elongation and taking the slope of the central part of the plot.
That sounds a little high. Young's modulus for 2024 is about 73,100 MPa
Applying pressure to a heated bone can cause it to fracture or break. Heating the bone weakens its structure, and pressure further compromises its integrity, leading to a higher risk of damage. Additionally, the heat may alter the bone's properties, making it more prone to deformation or failure under pressure.
its related to chiropractic method.the theory of nerve function.relief of bone under the pressure
Under your jaw bone, near your pressure point. Or on your right wrist, parallel to your thumb.
You've either got the wrong location for the pressure point, or you're not doing it correctly. Pressure points are defined by the point where the artery passes over the bone, and can therefore be "squeezed off" to stop blood flow. If you're not feeling the bone, then you're pressing in the wrong direction, or in the wrong location. You should reposition your hand so that you feel the bone under the muscle, and apply the pressure again.
One of the best pressure cooker bone broth recipes involves simmering bones, vegetables, and herbs in water for about 2 hours under high pressure. This method helps extract nutrients and flavors quickly, resulting in a rich and flavorful broth.
No. Your knuckles crack because of gas bubbles formed in the joints under pressure.
IT IS USING A CLOSED FIST OVER A LABORING MOMS PUBIC BONE,PUSHING IN AN INWARD AND DOWNWARD MOTION TO ALLOW THE BABYS SHOULDER TO GO UNDER THE PUBIC BONE AND DELIVER.
Reposition your fingers and apply firm pressure again until you feel the bone.
This is the spongy bone made of rings of collagen. This allows the bones to slightly flex when under pressure, but break to relieve the pressure if needed.
femur