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Chapter 613 A new idea for the dome

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    Although Chen Xin was researching and improving the emergency survival cabins, when he took apart the emergency survival cabins he had used, he could see from the grid structure formed by the hardening of the non-Newtonian fluid material.  It is possible to improve the dome design.

    Although these two things seem to be completely unrelated at first glance, they can be said to have something in common.

    The grid structure used in the emergency survival cabin is a complete sphere, and the structural support of the dome is also a spherical surface. In principle, the two can be regarded as the same structure.

    Therefore, some of the designs used in emergency survival cabins can actually be applied to dome structures.

    ¡°However, there is a huge size difference between the dome structure and the emergency survival cabin. If you want to apply the technology used in the emergency survival cabin to the dome, you still need to adjust the technology itself.

    What Chen Xin is thinking of actually refers to the non-Newtonian fluid material that still has a certain elasticity after being solidified and hardened by impact, and has good support properties. Is it possible to imitate the characteristics of this material to support the dome?  The strength is enhanced and the weight of the supporting structure is reduced, making the dome lighter and larger.

    ? Structurally speaking, both use triangular grid-like support structures, but they are different.

    This triangular support structure is the most stable structure, so it is not unusual to use this structure as a support. Moreover, the emergency survival cabin only uses a flat structure, while the dome support uses a more complex three-dimensional structure.  structure.

    Although the single-layer planar triangular mesh structure is equally stable, it has a certain degree of elasticity because there is only one layer and the material itself has a certain deformation.

    If you replace it with a rigid material and eliminate that little margin for deformation, it will become extremely hard.

    In Chen Xin¡¯s opinion, this is a place that can be exploited.

    Although the dome structure needs to be stable, in a sense it also needs a certain degree of elasticity, that is, impact resistance.

    Because this is a cover that covers a city, although there are very few meteorites now, in the event of a meteorite impact, the dome will still bear the brunt and become the first layer to receive the impact.

    Strengthening the material strength of the dome as much as possible so that it can withstand the impact of meteorites is naturally a feasible method.

    But doing so will undoubtedly impose very high requirements on material processing, and at the same time, the requirements on materials science itself will also be very high, and a large amount of expensive materials will be needed to achieve this.

    ??Although this is not unacceptable to Chen Xinhe and the country, it also lacks cost-effectiveness.

    So if there are cost-effective materials that can be used to strengthen the dome structure, that would be the best thing.

    In the currently determined dome city design drawings, the material selected for the support of the dome structure is still high-performance steel, which is constructed into a triangular grid structure in the form of hollow pipes to provide sufficient support and strength.

    ??The outer layer is made of independent triangular airbags made of efte material, and then spliced ??together to form the outer layer of the dome.

    The reason for doing this is also to resist possible meteorite impacts.

    If it is a large meteorite impact, there is no need to mention anything. Unless Chen Xin creates an energy shield now, otherwise if a meteorite hits the entire city, there will be no problem of resistance.

    But if it is a small meteorite, or even a small meteorite that has not been burned out, the structure of the dome can at least play a buffering role, preventing it from causing major damage to the city under the dome.

    And even if part of this independent airbag structure is damaged, the damaged part can be replaced, so that if a hole is broken, the entire dome needs to be replaced.

    Originally, only steel was suitable for such a large support structure, and other materials were not suitable in terms of strength or cost.

    But now the emergence of this non-Newtonian liquid material has given Chen Xinxin new choices and inspiration.

    The strength of this material after solidification and hardening has been tested. Although it is not particularly outstanding in hardness, its toughness is very good.

    Although the original development idea of ??this material is to exist as a liquid and harden after being impacted, if you take advantage of its properties after hardening, it is not impossible to use it as a material.

    According to Chen Xin¡¯s idea, he wanted to use this material to weave a layer of support structure on the surface of the triangular efte air bag to increase the strength of the dome.

    When designing the dome structure,??, Chen Xin actually discussed this issue with relevant experts, but at that time he proposed to use steel wire as the material, but this would greatly increase the quality, and the steel wire itself is relatively flexible and the support strength is not enough.

    Although everyone later proposed a series of possible materials such as engineering plastics and carbon fiber, either the cost was a problem or the material itself did not meet the requirements, so the idea had to be abandoned in the end.

    But now the emergence of this non-Newtonian liquid material has given Chen Xin a new choice.

    He can use this material to fill the inner layer of the efte airbag with the same reinforced structure like an emergency survival capsule. When the efte airbag is impacted by an external force, this layer of reinforced structure can become a support and buffer, dispersing the impact of external forces.  The impact brought by it strengthens the strength of the efte airbag.

    Otherwise, the efte material itself is also a flexible material and cannot maintain its shape after damage, which will still cause certain troubles for the dome.

    For example, although some small meteorites penetrated the efte airbag, they actually only penetrated a small hole in the airbag. In this case, if there is no internal reinforcement support, the airbag will completely deflate.

    Although it is easy to find the damaged areas during subsequent repairs, it will also affect the overall performance of the dome.

    But if the airbag itself has a certain strength and can still maintain its shape even after being punctured, then the overall shape of the dome can be maintained to the greatest extent without affecting the performance.

    And even if the meteorite is relatively large and the breakdown area is large, this material can be used as a reinforcing support to maintain the overall shape and structure of the efte airbag as much as possible, so that the underlying steel structure support will not be destroyed.  Causing large-scale collapse.

    Although Chen Xin¡¯s idea is very good, whether it is practical or not still needs to be tested in practice.

    Now Chen Xin is planning to conduct a simulation test to see if his idea works.  (Remember the website address: www.hlnovel.com
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