The Literary Life of a Science Leader

Chapter 69 "Mechanics of Materials (2100 Edition)" I Can't Understand

""The West Chamber" and "Mechanics of Materials (2100 Edition)"."

Mu Jingchi reviewed the knowledge extracted by the system. There was a song, the famous song "West Chamber" with the back string, and the 2100 edition of the textbook on mechanics of materials.

"It's okay!" Mu Jingchi was a little greedy.

The song "West Chamber" is naturally a good song, although at that time Wang Leehom, Jay Chou, Tao Zhe, Lin Junjie and other gods fought.But on the Internet, Houxian, Xu Song, Xu Liang, Wang Sulong and others also have a lot of popularity.

The song "West Chamber" still has a good popularity.

The appearance of "Material Mechanics (2100 Edition)" also let Mu Jingchi know that the extraction of knowledge is not limited to 2069.For example, this time, it is 2100.

There is nothing simple in mechanics, and material mechanics is no exception.

However, the current subject of material mechanics and Mujingchi does not present a function that is directly related to the present. Perhaps Mujingchi will be directly used in the future, but not now.

Because the research object of material mechanics is the component, that is, the component after the material is processed.

Mechanics of materials is a discipline that studies the calculation of strength, stiffness and stability of components.

When the designed components have sufficient strength, stiffness and stability, they can work safely and reliably under the load, indicating that the design meets the safety requirements.

However, a reasonable design should also give full play to the potential of the material to reduce material consumption.

Therefore, both safe use and economical economy are signs of rational design.

The task of material mechanics is to provide the necessary theoretical basis and calculation methods for selecting appropriate materials for components, determining reasonable cross-sectional shapes and sizes, and ensuring that components are both safe and economical.

Simply put, the task of materials mechanics does not lie in the research and development of materials, but in the application of materials.

That's why Mu Jingchi was a little dissatisfied.

Although dissatisfied, Mu Jingchi still checked the Mechanics of Materials.

It is not directly related to the current material research and development work, but the knowledge in it is correct and has been verified by experiments. The content in it can inspire him and allow him to learn more knowledge.

"Introduction, axial tension and compression, torsion and shear, bending internal force and bending stress, bending deformation, stress state and strength theory, strength calculation of combined deformation, pressure bar stability, energy concept, dynamic load and alternating stress. . . ”

This is a large chapter classification, and there are more small chapters under this large chapter.

Practical shear and extrusion calculations, normal stress strength calculations of beams, reasonable stiffness design of beams, specific energy of spatial stress states, equivalent stress and strength conditions, stress calculations of eccentric compression, calculations of critical force of ideal compression bars, etc. .

Mu Jingchi is very familiar with the name of this knowledge, because he is a student at the School of Materials, and materials mechanics is a required subject.

It's just that the content and knowledge in it are richer.

Flipping through the book pages of this system, Mu Jingchi saw that the number of pages has reached three thousand, imagine its thickness.What is the page number of Mechanics of Materials in Tsinghua University?
324!

A full ten times the knowledge content.

"You still have to learn. This is a materials science textbook for the year 2100. All kinds of materials science textbooks are actually related to knowledge. I can still learn a lot of new theoretical knowledge from the Mechanics of Materials (2100 edition). "

"More importantly, I can also learn various material formulas from it, touch on deeper computational materials science, and have a deeper understanding of the material itself."

···
The next day.

Mu Jingchi went to the school library, and he directly borrowed relevant textbooks from the Department of Mathematical Sciences and Department of Physics from the library.

There is no way, Mu Jingchi is in trouble.

Mathematics and physics in 2100 are not at the same level as today's mathematical physics, so Mu Jingchi couldn't understand many formulas and calculation methods in "Material Mechanics (2100 Edition)".

In the past 80 years, although mathematics and physics have not made much breakthrough in big conjectures, for example, the seven major problems of mathematics are still the seven major problems.

There was no Lu Zhou to help solve it.

However, many secondary mathematical conjectures and physical theories have been confirmed, and these theories and formulas have been directly used in material mechanics calculations.

However, Mu Jingchi is neither a master of mathematics nor a master of physics.

Materials science is an interdisciplinary subject, but mathematics is not as good as mathematics department students, and physics is not as good as physics department students.

Therefore, Mu Jingchi needs to learn and supplement his knowledge of mathematics and physics.

"Last time, I said that I need to make up for mathematics and physics. I didn't expect it to come so soon." Mu Jingchi thought to himself while borrowing these textbooks and books out of the library with his teacher's library card.

Teacher library cards are easier to use than student library cards, at least in terms of the number of books.

He is not going to study mathematics and physics at school, and his efficiency is not as high as his study at home.At school, Mu Jingchi still planned to continue to do research on projects, study mathematics and physics, and go to the study at night.

If there is something you don't understand, you can also ask the professors in the Department of Mathematical Sciences and Department of Physics.

"Could it be that when I'm doing materials research, I still have to make a breakthrough in mathematics and physics?" Mu Jingchi thought so, but soon he shook his head, "What I obtained is not some crazy system, My day is only 24 hours, and I have to sleep and eat, time and energy are limited!"

"Be willing, be willing, and be willing to gain." Mu Jingchi sighed, "If I don't break into the world of mathematics and physics, I can concentrate more in the world of materials and achieve greater results."

"Perhaps when I excel in materials research, I can go to the world of mathematics and physics."

"The future is unknowable."

Mu Jingchi moved these teaching materials into his BMW X6, and then went to the material research building.

Although I am not going to venture into the world of mathematics and physics, the calculation methods and theoretical knowledge in "Mechanics of Materials (2100 Edition)" can still be used.

After all, materials are engineering subjects, not science subjects like mathematics and physics.

There are still many situations where people don't understand the principle, especially when they are lucky enough to successfully develop materials, as long as they can be manufactured repeatedly.

You can know the material but don't know why, and then seek theoretical support after the advancement of science and technology.

···
"I believe that you already have some understanding of dislocation theory and the importance of this experiment. Now start the project experiment in the general direction of the plan!"

Although dislocation theory I is only a part of the whole dislocation theory system, it can also improve the performance of metal materials.

Just like the Z325 series.

"Yes, Doctor."

The four graduate students and Ai Xiaosheng are very motivated, which is caused by many factors.On the one hand, it is because the experimental funds and resources are sufficient; on the other hand, after several days of research, they found that dislocation theory I seems to be very interesting.

　Twice a day is my last stubbornness, please recommend tickets!
　　


(End of this chapter)